That's me at this point, and why I keep spamming with possible ideas. One more:
Hino's about to lean in to whisper something into Koguma's ear.
Or maybe posing for an 'imminent kiss' to wait or Koguma to wake up, as if catching her mid-act
Actually, that would be pretty great: Hino wants to kiss Koguma, but is afraid to, so instead for the standard MO of teasing. By way of waiting in the perfect 'caught just before kissing her' pose.
And waiting.
And waiting.
And waiting.
And Koguma just won't wake up, so Hino gets tired from holding the pose / needs to stretch, gets up... and then Koguma wakes up. :p